The theory developed by Borel and Tits on the structure of \(G^+\)  is valid in positive characteristic as well. Therefore, the proof follows exactly as in §REF , where we first obtain the sealed property for almost \(k\) -simple groups by minimality of \(P/Z_0\)  where \(P\)  is a minimal parabolic and \(Z_0\)  is a central subgroup, see Lemma REF .
Products and quotients of sealed groups are sealed. As semisimple \(k\) -groups are a quotient of a product of \(k\) -almost simple groups (see [1]}), we get that the \(k\) -points of semisimple \(k\) -group is sealed.
